Calculating-machine.



H. A. WIBERG.

CALCULATING MACHINE.

APPLICATION FILED Aue.25.1913.

1,154,150. PatentedSept. 21, 1915.

2 SHEETSSHEET 1.

H. A. WIBERG;

CALCULATING MACHINE.

APPLICATION FILED AUG.25. 1913.

1 1. 54., 1 5 Patented Sept. 21, 1915.

2 SHEETSSHEET Z.

TE spares rarer ra ion I-IELGE ALLAN WIBERG, OF STOCKHOLIVL, SWEDEN, 'ASSIGNOR- TO AKTIEBOLAGET ADDERATOR, OF STOCKHOLIVI, SWEDEN. I

CALOULATING-MACHINE Specification of Letters Eatent.

Patented Sept. 21, 1915.

g Application filed August 25, 1913. Serial No. 786,613.

To all whom it may concern 1 Be it known that I, HELGE ALLAN'VVIBERG, engineer, citizen of Sweden, residing at Kungsholmsgatan 8, Stockholm, Sweden, have invented certain new and useful Improvements in Calculating-Wachines, of which the following is a specification.

In calculating machines with a single set of keys comprising the figures O to 9, there is usually employed, for recoupling to the several calculating wheels,-a movable carculating wheels are operated, are likewise connected with the carriage inosuch a man ner, that-an adjustment of the carriage can take place by means of the said keys.

' In the accompanying drawings are shown the essential parts of the machine, Figure 1 being a front view, Fig. 2 aside View, and Fig. 3 a top plan view with the carriage removed.

a is an arm rotatable around the hollow drilled pivot b, which pivot b embraces the shaft 0, on which the calculating wheels at are arranged. The pivot 72 is mounted on a carriage d -movable on the guides 6. By means of a suitable gearing device, not shownrin the,drawing thearm, a can by pressing down one of the keys, be turned an angle corresponding to the value of the key pressed down. By means of a coupling de vice 7, the details of which are not shown in the drawing, one of the calculating wheels is turned the same angle. The arm a is automatioally coupled with the nearest calculating wheel to the right, so that the said wheel is acted upon and willturnnexttimea key is pressed;v In order to effect this automatic coupling, the carriage is acted on by a spring gwhichtends todraw the carriage to the right (see Fig. 1), On the carriage is more over mounted a toothed rack it, having its teeth spaced to correspond to the-distance between the calculating wheels d.

- 11 is an arm rotatable around the pivot is,

which arm has twoadjacent pawls Z and m of different length. The said pawls constitutethe ordinary device for feeding the carriage forward. The distance between the points of the pawls is equal to half the distance of the teeth on the rack it. Each time a key is pressed down, the arm'i by means of a suitable device notshown in the drawing is oscillated around the pivot is, so that first one pawl and then the other engages with the rack It, and thus the carriage d will obviously be moved step for step forward, that is to the right of Fig. 1.

In order to render it possible for the carriage to be returned by hand to the left, one of the pawls, m, is in well-known manner r0- tatable around the pivot n and is acted on by a spring 0. The carriage d is in Fig. 1 shown in the position when the arm a is coupled with the calculating wheel farthest to the left Fig. 1.

p All the parts described above are usual in calculating machines of a certain type.

For'the purpose of adjusting the carriage with the aid of the keys employed for operatingthe calculating wheels, the follow-' ing arrangements have been made, in ac cordance with thls lnventlon, lllustratlng one form of construction here described.

The carriage is so constructed that it can be other'end of the shaft, meets the projection t on the pawl'm, which pawl m is turned .out of gear with the rack h, the carriage freed. The shaft (1 there being retained in this position by means of a slight force caused for instance by a spring tending to drive theshaft toward the right of Fig. 1.

When the carriage gets farthest to the left,

a catch u, fixed'on it, engages with a notch on one of the guides 6, so that the carriage is securely held in this position. By a device which is described inmy copending application,'the catch a is released when one of the keys is pressed, and the carriage is thus free tomove to" the right, under the action of the already mentioned spring 9,

until its projection 79 meets one of the shoulders i, when the shaft 1, on which these projections are mounted, overcoming the fric tion previously referred to, is carried along to the right, Fig. 1. The pawl m being thus released from the shoulder s pressing against its projection t, thereupon engages with the toothed rack h. The shoulders r assume their iormal position shown in Fig. 2, but each of them, independently of the others, can be turned in such a manner that, they come in the path of the projection 79 like the fixed shoulder 1'.

The distances between the shoulders 1; correspond to the distances between the wheels of the calculatingmechanism. lVhen the shaft Q is farthest to the right, the shoulders o assume the positions shown in Fig. 1, a. they stand momentarily between the catches to which are. fixed. on the keys. lVhen, on the other hand, the shaft q is farthest to the left, the shoulders 1; come opposite to the catches w. lonsequently, if the key Z is pressed down, the corresponding shoulder u will be turned around, whereupon the carriage moves until its projection 72 meets this shoulder, when the carriage. will be stopped by the pawl m in the manner described above. This position of the carriage corresponds to that, in which the arm a is coupled with the calculating wheel situated farthest to the left, i. e. the unit wheel, as seen in Fig. l. correspondingly, on the key 2 being pressed, the carriage will be brought into the position corresponding to the, coupling with the 10 -wheel, and on the key 3 being pressed to the coupling with the 100 ,-wheel, and so on. lVhen the carriage has in this manner been adjusted in the desired position, it will be, moved step by step to the. right during the course of the calculating operation. In order that the shoulder '11 thus revolved may, not stand in the way, there is provided under the shoulders oa comb m with slanting planes, preferably in, the form of teeth, one tooth for each shoulder 41. When the shaft 9 is carried by the carriage to the right, the shoulder 1) which has been revolved is pressed against such a tooth, and is thereby pressed back out of the path of the projection p.

The above mentioned release of the catch 10 takes place in the following manner. The keys are all rotatable around the shaft 3 Around the said shaft there also rotates the clamp .e, which is held pressed against the farther ends of the keys by the spring 2. One of the sides of the clamp is prolonged into an arm 3 pointing obliquely upward, which arm 3 carries a tooth 4 rotatable around the pivot 5 and is pressed by a spring 6 against the shoulder 7. When the carriage stands farthest to the left and a key is pressed down, the arm a, is rotated as previously mentioned without acti'ngon the calculating mechanism. The key simultaneously turns the clamp z and the tooth l: glides past the projection S on the catch a. When the key is again released, so that the arm a returns to the O-position, the tooth l is pressed by the spring 6 under the projection 8 and raises it, so that the catch a is releasedand the carriage is freed.

The invention is not bound to calculating achines in which the movable carriage, carries the coupling part as in the examples given above. By adopting certain modifications, it can just as well be applied to niachines in which the carriage carries other parts, such as calculating mechanism and stop shoulders.

As regards the constructive execution, it is obvious that it can be given a number of variations. For instance, it is not necessary that the shoulders on the movable shaft are made revoluble independently of one another. They may instead be firmly fixed and placed screw-wise on the shaft, which shaft is then so arranged that it is turned a different amount for different keys, so that the required shoulder can be brought into the path of the carriage or some part conneeted with it.

If the carriage, for instance, is provided with step-like ledges 1 placed apart to cor respond to the distances between the calcu lating wheels, there will be required only a single movable shoulder for all the keys, which, shoulder by turning or displacing, can be adjusted in a position corresponding to the different ledges.

The recoupling of the keys from one mode of functioning to another, here above described as taking place directly through the carriage, which then serves as shifter, may also, be carried out by means of a specially designed shifter.

In machines designed for addcnda of more than 10 figures, extra keys may obviously be arranged for the additional number of figures.

Having now described my invention, what I claim, and desire to secure by Letters Patent is 1. In a calculuating machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; means tending to displace said carriage in one direction, means arresting the carriage in a certain position, said arresting means being released by the operation of any one of said keys.

2'. In a calculating. machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a ratchet device for arresting the carriage (when pushed against said spring out of engagement with all of said calculating wheels.

3. In a calculating machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a ratchet device for arresting the carriagewhen pushed against said spring out of engagement with all'of said calculating wheels; and means actuated by any one of said keys for releasing said ratchet device.

I. In acalculating machine having a stand, a plurality of calculating wheels and keys for operating said Wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tendingto displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a ratchet device for arresting the carriage when pushed against said spring' out of engagement with all of said calculating wheels, a lever having a member engaging with all of the keys, said lever contacting with said ratchet device so as to re lease it when oscillated by any one of said keys.

5. Inv a calculating 'machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring. tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a revoluble shaft in said stand and provided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being axially displaceable between two extreme positions, one with the shoulders registering with the keys and the 1 other position not. i

6. In a calculating machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a revoluble shaft in said stand and provided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being axially displaceable between two extreme positions, one with the shoulders registering with the keys and the other position not, and a shifter for said shaft for adjusting it in one of its extreme positions.

7. In a calculating machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage to said keys; a spring tending to displace sald carriage 1n one'd1rect1on, means for connecting the carriage with any one of said wheels, a revoluble shaft in said stand and provided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being -axially displaceable between two extreme positions, one with the shoulders registering with the keys and the other position not,.and' a shifter for said'shaft for adjusting it in' one of its extreme positions;

mounted to slide on said stand transversely said shoulders being mountedto oscillate on keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tendlng to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a feeding device, a revoluble shaft in said stand and provided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being axially displaceable between two extreme positions, one with the shoulders registering with the keys and the other position not, a projection on said shaft, said projection engaging with said feeding device and putting it out of action, when said shaft stands in the first one of said extreme positions.

9. In a calculating machine having a stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a revoluble shaft in said stand andprovided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being axially displaceable between two extreme positions, one with the shoulders registering with the keys and the other position not, and a shifter for said shaftfor adjusting it'in one of its extreme positions; said shoulders being mounted to oscillate on said shaft, and each key being provided with a finger engaging with the corresponding one of said shoulders when registering therewith, said shoulder being thus oscillated upon operation of the corresponding key, any one of said shoulders, when actuated by its corresponding key,

stand, a plurality of calculating wheels and keys for operating said wheels, a carriage mounted to slide on said stand transversely to said keys; a spring tending to displace said carriage in one direction, means for connecting the carriage with any one of said wheels, a revoluble shaft in said stand and provided with a plurality of shoulders positioned so as to correspond with the keys, said shaft being axially displaceable between two extreme positions, one with the shoulders registering with the keys and the other position not, and a shifter for said shaft for adjusting it in oneof its extreme positions; said shoulders being mounted to oscillate on said shaft, and each key being provided with a finger engaging with the corresponding one of said shoulders when registering therewith, said shoulder being thus oscillated upon operation of the corresponding key, any one of said shoulders, when actuated by its corresponding key, pro jecting into the path of said shifter; an oblique plane for each of said shoulders, said 20 plane engaging with and turning its corresponding shoulder out of the path of said shifter, upon said shaft being displaced into one of its extreme positions.

In testimony whereof I have afiixed my Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, I). G. 

